Hi Dave,

Sorry I haven't replied before now -- I wanted to sort out some details before making an update here. I received a few emails from people offering to work on this. Mike Huffman is was the first to get in touch and offer to do this using the exact spec. that we desired and is working on it for us now. We worked out the details of the design spec. together, but he is the one who would be most useful in terms of sharing practical ideas -- I said what we wanted and he is making it happen.

I am not sure if he follows this forum actively, so if you want to get in touch with him you could email me at dave AT ammp.or.tz and I'll forward your email to him. He said he is quite happy to share his experiences regarding the development of this. You can decide between you whether or not it would be best to continue discussions on this forum so that others can benefit from the ideas and experiences.

If anyone thinks it would be helpful if I posted more details about what decided we want the design to look like I could do that.

Dave.